| Greer to Nuth | 4,319.49 mi (6,951.55 km) |
| Greer to Oegstgeest | 4,230.52 mi (6,808.37 km) |
| Greer to Oirschot | 4,280.88 mi (6,889.42 km) |
| Greer to Oisterwijk | 4,274.76 mi (6,879.55 km) |
| Greer to Oldebroek | 4,280.17 mi (6,888.27 km) |
| Greer to Oldenzaal | 4,324.00 mi (6,958.81 km) |
| Greer to Ommen | 4,298.61 mi (6,917.95 km) |
| Greer to Oosterend | 4,272.48 mi (6,875.90 km) |
| Greer to Oosterhout | 4,259.55 mi (6,855.08 km) |
| Greer to Oosterwolde | 4,281.52 mi (6,890.43 km) |
| Greer to Oostzaan | 4,240.74 mi (6,824.82 km) |
| Greer to Opmeer | 4,236.73 mi (6,818.36 km) |
| Greer to Oss | 4,282.64 mi (6,892.25 km) |
| Greer to Oud-Beijerland | 4,236.97 mi (6,818.75 km) |
| Greer to Oudenbosch | 4,247.61 mi (6,835.87 km) |
